Erik Löffelholz

Software developer and computational scientist with a Master's degree in Mathematical Physics. Strong background in machine learning (PyTorch), numerical simulation, and full-stack web development. Experienced in building differentiable simulation systems, GPU-accelerated compute pipelines, and interactive 3D visualization tools.

Combines deep mathematical foundations with hands-on engineering skills in Python, TypeScript, and modern web frameworks, and increasingly works with agentic coding models and LLM-assisted development workflows.

Scientific Software Developer at Max Planck Institute for Mathematics in the Sciences (2025-04 – 2026-05)

Promoted from student developer to Scientist for the final period (Apr–May 2026).

• Built GPU-accelerated differentiable simulation and 3D visualization software (PyTorch, Three.js, WebGL) for mathematical research
• Implemented a discrete differential geometry operator library and pipelines for embedding meshes into curved (hyperbolic/spherical) spaces via energy minimization
• Designed a binary WebSocket streaming protocol (10–20× faster than JSON) connecting Python/PyTorch compute to browser frontends, with CUDA/MPS/CPU backends
• Co-authored a research paper on hyperbolic surface mesh embeddings (Bridges Conference 2026, under review)

Independent Developer & Researcher at Independent (2025 – Present)

Graph ML, Differentiable Physics & Scientific Computing

• Built full-stack ML and simulation applications (PyTorch + FastAPI + React/Three.js): a from-scratch graph ML framework, a PINN solver for ten PDEs, and browser-based differentiable-physics demos
• Developed hands-on expertise with agentic coding models and LLM-assisted development workflows

Subject-Matter Expert — STEM & Coding at Outlier.ai (2025 – Present)

AI Training & Model Evaluation

• Authored and reviewed STEM, mathematics and physics tasks for large-language-model training
• Evaluated and ranked model outputs (RLHF) and completed coding tasks in Python, C++ and JavaScript
• Contributed German-language (de-DE) prompt and audio-prompt tasks

Working Student — Mathematics Editorial at Ernst Klett Verlag GmbH (2024-03 – 2025-02)

• Reviewed and quality-assured mathematical content for educational textbooks
• Ensured technical correctness and pedagogical clarity across multiple publications

M.Sc. in Mathematical Physics – Universität Leipzig (2021-10 – 2025-09)

B.Sc. in Physics – Universität Leipzig (2018-10 – 2022-03)